Investment decision-making is a critical theme in entrepreneurial research. This study aims to explore how different types of investors are influenced by regulatory, political, economic, environmental, and societal changes following the rise of sustainable policies such as the Sustainable Development Goals (SDGs). Grounded in the External Enablement Framework and employing a qualitative, multi-case methodology, this thesis identifies eight key factors that influence investor decisions in sustainable entrepreneurship. It finds that external enablers like regulatory and societal changes motivate investments, while inhibitors such as stringent regulations and economic crises deter them. Additionally, investor preferences are shaped by past experiences, personal ethics, and team authenticity. The findings provide organizations with valuable insights into the factors that influence investment decisions in sustainable entrepreneurial ventures. Investors can gain a better understanding of external factors and opportunities, entrepreneurs can identify key considerations and potential new areas for growth, and policymakers can develop more market-oriented policies and or regulations to support sustainable investment and entrepreneurship.